Note 15 — Chapter IV · ON THE FORMATIONS OF THE PAMPAS.
Reading edition
Lyell’s “Travels in North America,” vol. i, p. 164 and “Proc. of Geolog. Soc.,” vol. iv, p. 39.
Reading edition
Lyell’s “Travels in North America,” vol. i, p. 164 and “Proc. of Geolog. Soc.,” vol. iv, p. 39.